An instrument used to measure acceleration. 加速计，测震仪用于测量加速度的仪器
The 18-month timetable is slowed to 16 months withdraw slower than the 16-month withdrawal Mr.Obama has had promised voters last year, but still accelerate accelerates the US U. 18个月的撤退时间表比奥巴马总统去年对选民承诺的16个月要长，不过已经加快了美军的撤离。
The system undergoes no acceleration. 该体系不承受加速度作用。
All spacemen must be able to bear acceleration. 所有太空人都应能承受加速度。
What direction is the acceleration of the canoe? 独木船的加速度方向如何?
It is called the centripetal acceleration. 这叫做向心加速度。